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OS-M (Chongqing SQX)
 OS-M1 (Lingque 1B) [OneSpace] |
 OS-M4 [OneSpace] |
OS-M or Chongqing SQX is a small solid fuel orbital rocket designed by the Chinese company OneSpace.
The OS-M1 version consists of a three stage core. The OS-M2 version is augmented by two and the OS-M4 version by four strap-on motors.
Reportedly the OS-M rockets use demilitarized solid rocket motors from retired missiles. Stage one has a fixed nozzle with steerable thrust vanes and fins. Stage two, which is identical to stage one, uses also thrust vanes and fins and stage three, identical to the OS-X prototype (?), uses only thrust vanes.
Possibly an additional post boost stage for trim maneuvers and apogee rising is also included.
The maiden flight of an OS-M1 on 27 March 2019 failed to reach orbit due to a gyroscope failure after 45 seconds of flight.
| Version | Stage 1 | Stage 2 | Stage 3 | Stage 4 |
|---|---|---|---|---|
| OS-M1 (Chongqing SQX-1) | ? | ? | ? | ? |
| OS-M2 (Chongqing SQX-2) | 2 × ? | ? | ? | ? |
| OS-M4 (Chongqing SQX-4) | 4 × ? | ? | ? | ? |
| Performance (kg) | LEO | LPEO | SSO | GTO | GEO | MolO | IP |
|---|---|---|---|---|---|---|---|
| OS-M1 | 205 | 73 | - | - | - | - | |
| OS-M2 | 390 | 204 | - | - | - | - | |
| OS-M4 | 553 | 307 | - | - | - | - |
No: Type Date LS Payload
1 1 OS-M1 27.03.2019 F Jq LP-43/95B Lingque 1B Planned: Launch sites: Alx = Alxa Left Banner Airport, Inner Mongolia, China† Jq = Jiuquan Space Center, Inner Mongolia, China
